Skip to main content
Associate II
January 20, 2025
Question

STM32WB09KE ble disconnect with 0x08 reason

  • January 20, 2025
  • 1 reply
  • 829 views

hi ST support team

I am designing a circuit using the STM32WB09KE chip.

Screenshot 2025-01-21 at 00.28.54.png

However, when running the BLE_p2pServer example program from the package STM32Cube_FW_WB0_V1.1.0 and using the ST BLE Toolbox app (on iphone) to connect, I encounter a continuous disconnect issue.

Screenshot 2025-01-21 at 00.41.36.png

I have changed the UART1 pins and am not using the LSE compared to the example code.

Screenshot 2025-01-21 at 00.38.26.png

Could you help me resolve this problem?

1 reply

Andrew Neil
Super User
January 20, 2025

So have you looked-up what reason 08 means?

Does it work on an ST board?

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
Associate II
January 21, 2025

0x08 meaning connection timeout

I don't have an ST board, so I haven't been able to test the sample code on it. I'm not sure if my circuit design is causing any abnormalities

Andrew Neil
Super User
January 21, 2025

@tiennguyen wrote:

I'm not sure if my circuit design is causing any abnormalities


Which is exactly the reason for trying it on an ST board!

Or, at least, some other known-good board.

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.